![Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/51WdpaV2LjL._AC_SX425_.jpg)
Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo
![Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/I/51ntWa1Q0sL._AC_SX450_.jpg)
Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo
Do noise-cancelling headphones work even without music or it is not plugged in to any device? - Quora
![Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo Bose Noise Cancelling Headphones 700 — Over Ear, Wireless Bluetooth Headphones with Built-In Microphone for Clear Calls & Alexa Voice Control, Black: Amazon.co.uk: Electronics & Photo](https://m.media-amazon.com/images/S/aplus-media/vc/423552e1-8d78-4a87-af17-4d412147fca5.__CR0,200,1600,1200_PT0_SX800_V1___.jpg)